Improving Eye-Tracking Data Quality: A Framework for Reproducible Evaluation of Detection Algorithms

Sensors (Basel). 2024 Apr 24;24(9):2688. doi: 10.3390/s24092688.

Abstract

High-quality eye-tracking data are crucial in behavioral sciences and medicine. Even with a solid understanding of the literature, selecting the most suitable algorithm for a specific research project poses a challenge. Empowering applied researchers to choose the best-fitting detector for their research needs is the primary contribution of this paper. We developed a framework to systematically assess and compare the effectiveness of 13 state-of-the-art algorithms through a unified application interface. Hence, we more than double the number of algorithms that are currently usable within a single software package and allow researchers to identify the best-suited algorithm for a given scientific setup. Our framework validation on retrospective data underscores its suitability for algorithm selection. Through a detailed and reproducible step-by-step workflow, we hope to contribute towards significantly improved data quality in scientific experiments.

Keywords: detection quality; eye-tracking; methodological framework; pupil detection algorithm.

MeSH terms

  • Algorithms*
  • Data Accuracy
  • Eye Movements / physiology
  • Eye-Tracking Technology*
  • Humans
  • Reproducibility of Results
  • Software

Grants and funding

We acknowledge financial support from the Open Access Publication Fund of UKE—Universitätsklinikum Hamburg-Eppendorf and DFG—German Research Foundation for open access publication.